Company Introduction
Mcneil Instruments is a trusted name in the global steel and metal industry, delivering premium-quality products and customized solutions to meet diverse industrial needs. With a strong presence in the Kuwait and across international markets, we specialize in manufacturing and supplying stainless steel pipes, tubes, flanges, fasteners, and other high-performance metal products.
Our commitment to quality, innovation, and customer satisfaction sets us apart. Backed by years of industry expertise, we adhere to international standards and ensure precision engineering in every product we deliver. At Mcneil Instruments, we aim to build long-lasting relationships with clients by providing reliable, durable, and cost-effective solutions for industries such as oil & gas, construction, marine, and petrochemicals.
What is Stainless Steel 347 Fasteners?
Stainless Steel 347 fasteners are manufactured from a niobium (columbium) stabilized austenitic stainless steel alloy. This stabilization prevents carbide precipitation at elevated temperatures, providing excellent resistance to intergranular corrosion. Grade 347 fasteners offer superior strength, oxidation resistance, and reliability in high-temperature and high-stress environments.
Applications of Stainless Steel 347 Fasteners
- High-Temperature Service – Ideal for prolonged exposure to elevated temperatures.
- Power Generation – Used in boilers, superheaters, and heat recovery systems.
- Oil & Gas Industry – Suitable for refinery and high-heat process equipment.
- Chemical Processing – Resistant to oxidation and corrosive chemicals.
- Heat Exchangers – Performs well under thermal cycling conditions.
- Aerospace & Heavy Engineering – Used in high-temperature structural components.
Common Uses of Stainless Steel 347 Fasteners
- Fastening high-temperature piping, valves, and flanges.
- Boilers, furnaces, and exhaust system assemblies.
- Power plant equipment and heat recovery systems.
- Oil refinery and petrochemical processing units.
- High-temperature industrial machinery and equipment.
- Applications requiring heat resistance, strength, and long-term durability.
Hex Bolts Specifications
| Specification | Details |
|---|---|
| Hex Bolts Standard | EU, IFI, CSN, Italian, ASME, British BS, Indian IS, ISO, DIN, Polish PN, SAE |
| Hex Bolts Sizes | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160 |
| Hex Bolts Length | 3/8 to 8″ |
| Hex Bolts Materials | High Tensile, Stainless Steel, Inconel Fasteners, Incoloy Fasteners, Hastelloy Fasteners, Monel Fasteners, Silicon Bronze, Phospher Bronze, Aluminium Bronze, Nickel, Brass, Copper, Copper Nickel, Nitronic, Nimonic, ASME, ASTM |
| Hex Bolts Coating | PTFE Coated Hex bolt, Hot Dip galvanized Hex bolt, Yellow Zinc Plated Hex bolt, Blue Zinc Plated Hex bolt, Black Zinc Plated Hex bolt, Zinc Cobalt Plated Hex bolt, Aluminium Zinc Flake Coated Hex bolt, Black Phosphate Hex bolt, Zinc Plated Hex bolt, Nickel Plated Hex bolt |
| Hex Bolts Forming | Hot Forged Hex Bolts & Cold Forged Hex Bolts |
Hex Bolts Sizes & Standards
| Standards | Sizes |
|---|---|
| ASME B18.2.1 Hex Bolts | 3/8 inch to 3 inch |
| BS 1769 Hex Bolts | ½ inch to 2 inch |
| ASME B18.2.3.6M Hex Bolts | M12 to M36 |
| ASME B18.2.3.7M Hex Bolts | M16 to M36 |
| DIN 6914 Hex Bolts | M12 to M36 |
| ISO 7412 Hex Bolts | M12 to M36 |
| UNI 5712 Hex Bolts | M12 to M36 |
| DIN-EN 14399-4 Hex Bolts | M12 to M36 |
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Applications & Uses of Fasteners
Fasteners in Agriculture Industry
Fasteners in Automobile & Transportation
Fasteners in Oil and Gas Industry
Fasteners in Plumbing
Fasteners in Water Supply Systems
Fasteners in Chemical Refining
Fasteners in Building & Construction
Fasteners in Power Generation
Fasteners in Military
Fasteners in Marine
Stainless Steel 347 Fasteners Manufacturer, Supplier, Exporter in Countries
| Country | Country | Country | Country |
|---|---|---|---|
| Stainless Steel 347 Fasteners Exporters in Kuwait | Stainless Steel 347 Fasteners Exporters in India | Stainless Steel 347 Fasteners Exporters in Oman | Stainless Steel 347 Fasteners Exporters in Iran |
| Stainless Steel 347 Fasteners Exporters in Qatar | Stainless Steel 347 Fasteners Exporters in China | Stainless Steel 347 Fasteners Exporters in UAE | Stainless Steel 347 Fasteners Exporters in Africa |
| Stainless Steel 347 Fasteners Exporters in Turkey | Stainless Steel 347 Fasteners Exporters in Mexico | Stainless Steel 347 Fasteners Exporters in Canada | Stainless Steel 347 Fasteners Exporters in Malaysia |
| Stainless Steel 347 Fasteners Exporters in Saudi Arabia | Stainless Steel 347 Fasteners Exporters in Brazil | Stainless Steel 347 Fasteners Exporters in USA | Stainless Steel 347 Fasteners Exporters in Sri Lanka |
| Stainless Steel 347 Fasteners Exporters in Australia | Stainless Steel 347 Fasteners Exporters in Nigeria | Stainless Steel 347 Fasteners Exporters in 85+ countries | |
Manufacturer & Exporter of Fasteners in the Following Countries
| Country | Country | Country | Country | Country |
|---|---|---|---|---|
 Saudi Arabia |
 Kazakhstan |
 Zimbabwe |
 Netherlands |
 India |
 Afghanistan |
 Belgium |
 UAE |
 Israel |
 Europe |
 New Zealand |
 Mexico |
 Canada |
 Venezuela |
 United Kingdom |
 United States |
 South Africa |
 Malaysia |
 Poland |
 Germany |
 Singapore |
 Sri Lanka |
 Australia |
 Brazil |
 Ireland |
